A Vimana is a word with several meanings ranging from temple or palace to mythological flying machines described in Sanskrit texts like Yajurveda, Mahabharata, Samarangana Sutradhara, Rigveda, Ramayana and even older ones. As well as being able to fly within Earth’s atmosphere, Vimanas were also said to be able to travel into space and travel under water.
Vimanas, of various shapes and sizes and with two or more engines, were sophisticated flying machines equipped with deadly weapons, and though they were used for ordinary travel and transports, their main purpose was warfare. Vimanas can fly at great heights with the aid of quicksilver and a great propulsive wind. These Vimanas could apparently travel vast distances and manoeuvre upwards, downwards and forwards.